[SR-1242] undefined reference to `pthread_workqueue_signal_np'

[drewcrawford]

Previous ID	SR-1242
Radar	None
Original Reporter	@drewcrawford
Type	Bug
Status	Closed
Resolution	Done

Attachment: Download

Environment

swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a
linux x64

Additional Detail from JIRA

Votes	0
Component/s	libdispatch
Labels	Bug, BuildScript
Assignee	dgrove-oss (JIRA)
Priority	Medium

md5: 5b44bab98d2e303c59f3b525ea5019f3

Issue Description:

When building libdispatch as part of the build-script, I get the following compile failure:

libdispatch: using standard linker
+ [[ ! -f /swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/config.status ]]
+ pushd /swift-dev/build/buildbot_linux/libdispatch-linux-x86_64
/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64 /swift-dev/swift
+ make
Making all in dispatch
make[1]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/dispatch'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/dispatch'
Making all in man
make[1]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/man'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/man'
Making all in os
make[1]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/os'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/os'
Making all in private
make[1]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/private'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/private'
Making all in src
make[1]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/src'
make  all-am
make[2]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/src'
make[2]: Nothing to be done for 'all-am'.
make[2]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/src'
make[1]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/src'
Making all in tests
make[1]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/tests'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64/tests'
make[1]: Entering directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/swift-dev/build/buildbot_linux/libdispatch-linux-x86_64'
+ cd tests
+ make build-tests
/bin/bash ../libtool  --tag=CC   --mode=link clang -Wall -Wno-deprecated-declarations  -fblocks -I/usr/include/kqueue  -isystem /usr/include/bsd -DLIBBSD_OVERLAY    -g -O2   -o dispatch_apply dispatch_apply.o libbsdtests.la ../src/libdispatch.la -lkqueue  -lpthread_workqueue -lbsd  -lpthread  -lBlocksRuntime
libtool: link: clang -Wall -Wno-deprecated-declarations -fblocks -I/usr/include/kqueue -isystem /usr/include/bsd -DLIBBSD_OVERLAY -g -O2 -o .libs/dispatch_apply dispatch_apply.o  ./.libs/libbsdtests.a ../src/.libs/libdispatch.so -lkqueue -lpthread_workqueue -lbsd -lpthread -lBlocksRuntime -Wl,-rpath -Wl,/tmp/install///usr/lib/swift/linux
../src/.libs/libdispatch.so: undefined reference to `pthread_workqueue_signal_np'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
Makefile:1121: recipe for target 'dispatch_apply' failed
make: *** [dispatch_apply] Error 1
./utils/build-script: command terminated with a non-zero exit status 2, aborting
./utils/build-script: command terminated with a non-zero exit status 1, aborting
root@7ebb6c41d1b4:/swift-dev/swift#

This is new behavior in swift-DEVELOPMENT-SNAPSHOT-2016-04-12-a, and it only reproduces via build script.

I currently work around with the attached patch to disable the test that produces this error.

I encounter this error even with skip-test-libdispatch=1, which IMO should not even compile these tests.

I'm setting component to libdispatch, although it may be an infrastructure bug.

[drewcrawford]

I'm also seeing this when linking any program that uses libdispatch, so it looks like the problem goes deeper than disabling tests.

[drewcrawford]

Resolved in #64

[modocache]

Looks like this was fixed in #64 Thanks!